Implementing Legacy Audio on the PCI Bus Revision 1.2 Written by Gary Solomon Sr. Staff Engineer Platform Architecture Lab
[email protected] Intel Corporation Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. * Other brands and names are the property of their respective owners. Copyright (c) Intel Corporation 1996 1. Introduction / Scope This paper is targeted at IHVs and OEMs who have detailed working knowledge of the current PC audio architecture. It is also recommended that the reader be familiar with the Audio Codec ‘97 Component (“AC ‘97”) Specification available on the Intel Web server at http://www.intel.com/pc- supp/platform/ac97/. Companion white papers address two related subjects: · “Digital audio” and the 1997 desktop PC · Hardware Acceleration Models and Re-direction of Audio Streams The scope of this document is not intended to fully detail each mechanism described herein. It is also not the intent of this paper to debate or judge whether or not it makes sense to migrate legacy compatible audio to the PCI bus.